某1.5L自吸增程器设计开发
Development of a Specific Extended RangeBased ona 1.5L Na-turally Aspirated Engine
基于某增程搭载车型性能需求，开发的一款1.5L增程专用自吸发动机，匹配专用发电机，提升增程车型续航里程。通过台架性能开发及整车仿真验证，主要结论：1.增程专用发动机使用工况点更为集中，通过高效燃烧系统、催前EGR方案、阿特金森循环、电动化及热管理等技术措施，发动机最高热效率达到42%，同时大幅拓宽用户使用高效区。2.相比基础机型，混动专用自吸发动机在整车WLTC馈电油耗收益0.58L/100km，续航里程能够提升12%。3.通过发动机与发电机高效区匹配，提升增程器总成效率，结合总成台架试验验证，最高油电转换率达到3.5kwh/L。
A 1.5L extended range specialized naturally aspirated engine was developed based on the performance requirements of a certain equipped, with the aim of improving range. Through bench performance development and vehicle simulation verification, the main conclusions were as follows: 1. The operating conditions of the extended range professional engine are more concentrated. Through technical measures such as efficient combustion system, pre-catalyst EGR scheme, atkinson cycle, electrification and thermal management, the maximum thermal efficiency of the engine has reached 42%, and efficiency has been greatly expanded. 2.Compared to the basic model, the hybrid dedicated engine has a fuel consumption gain of 0.58L/100km in the WLTC, and endurance mileage increase the range by 12%.3. The efficiency of the range extender assembly is improved by matching the high efficiency zone of the engine and the generator. Combined with the bench test verification, the highest oil-electricity conversion efficiency reaches 3.5kwh/L.
陈克朋;陈涛;庹汉郧;宋扬;李紫卫;
东风汽车集团有限公司技术中心,武汉,430058;东风汽车集团有限公司技术中心,武汉,430058;东风汽车集团有限公司技术中心,武汉,430058;东风汽车集团有限公司技术中心,武汉,430058;东风汽车集团有限公司技术中心,武汉,430058;
TK4
extended range specialized oil-electricity conversion efficiency endurance mileage
1-6 / 6
评论